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2024-11-22 2:21

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Conference: Bucharest University Faculty of Physics 2024 Meeting

Section: Theoretical and Computational Physics, High-Energy Physics, Applied Mathematics

Title:

Phenomenological Minimal Supersymmetry Scan using Run 2 ATLAS searches

Authors:

Hammad Rasheed(1,2)

^*
Affiliation:

1) Horia Hulubei' National R&D Institute for Physics and Nuclear Engineering, Reactorului 30, RO-077125, P.O.B. MG-6, Măgurele-Bucharest, Romania, EU

2) Faculty of Physics, University of Bucharest, Atomiștilor 405, RO-077125, Măgurele-Bucharest, Romania, EU

E-mail

rasheed.hammad@cern.ch

Keywords:

Supersymmetry, pMSSM, sparticles

Abstract:

Supersymmetry (SUSY) provides elegant solutions to several problems in the Standard Model (SM), and searches for SUSY particles (sparticles) are an important component of the Large Hadron Collider (LHC) physics program. The most considered SUSY model is the minimal supersymmetric Standard Model (MSSM), which is the minimal possible extension of the SM. The MSSM contains 120 free parameters, which are large enough to handle and can be reduced to the phenomenological MSSM (pMSSM), which has 19 free parameters. This talk aims to present the latest studies for the SUSY-inclusive searches within the pMSSM framework. The study is performed using the 13 TeV RUN 2 data collected with the ATLAS experiment, which corresponds to an integrated luminosity of 139 fb-1. The study aims to quantify the exclusion strength of the Run 2 searches. Full 19 pMSSM scanning parameters generate the models to encapsulate the rich phenomenology of SUSY. It covers the R-parity-conserving SUSY models. The sparticles must be produced in pairs. The lightest supersymmetric particle (LSP) is stable through strictly enforcing R-parity conservation and weakly interacting. The LSP may be considered a viable candidate for the dark matter particle. The main targets are gluinos and squark(light flavor) in strong production and charginos and sleptons in electroweak production.

References:

https://www.lhc-closer.es/taking_a_closer_look_at_lhc/0.atlas

https://cds.cern.ch/record/591472/files/0211168.pdf

https://link.springer.com/article/10.1007/JHEP10(2015)134

Acknowledgement:

This study was supported by PN23210104 and ATLAS CERN-RO projects.